:root{--ink:#171a1d;--muted:#68717a;--line:#d9dee2;--paper:#fff;--soft:#f5f6f7;--yellow:#f1bd29;--blue:#0d5f91}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--soft);color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.62}
a{color:var(--blue)}
.sitebar{background:#111;color:#fff;border-bottom:4px solid var(--yellow)}
.sitebar-inner{max-width:1120px;margin:0 auto;padding:12px 18px;display:flex;align-items:center;gap:18px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:900;letter-spacing:.2px;white-space:nowrap}
.brand img{width:42px;height:42px;border-radius:10px;object-fit:cover;background:#fff}
.nav{margin-left:auto;display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.nav a{color:#fff;text-decoration:none;font-weight:800;font-size:13px}.nav a:hover{text-decoration:underline}
.wrap{max-width:980px;margin:0 auto;padding:34px 18px 64px}
.hero{background:#171a1d;color:#fff;border-radius:22px;padding:clamp(26px,5vw,50px);box-shadow:0 18px 45px rgba(0,0,0,.12);margin-bottom:24px}
.eyebrow{font-size:12px;font-weight:900;letter-spacing:1.4px;color:var(--yellow);text-transform:uppercase}
h1{font-size:clamp(34px,6vw,58px);line-height:1.02;margin:8px 0 14px;letter-spacing:-1.2px}
.hero p{max-width:760px;color:#e6e8ea;font-size:18px;margin:0}.hero .cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.btn{display:inline-block;border-radius:10px;padding:11px 16px;background:var(--yellow);color:#111;text-decoration:none;font-weight:900}.btn.secondary{background:#fff;color:#111}
.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:clamp(22px,4vw,38px);box-shadow:0 8px 28px rgba(0,0,0,.045);margin:18px 0}
.card h2{margin-top:0}
h2{font-size:28px;line-height:1.18;margin:34px 0 10px}h3{font-size:20px;line-height:1.25;margin:28px 0 8px}
p,li{font-size:16px}
.lede{font-size:19px;color:#3d454c}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.guide{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;text-decoration:none;color:inherit;box-shadow:0 5px 18px rgba(0,0,0,.035)}.guide:hover{border-color:#aeb8c0;transform:translateY(-1px)}.guide h3{margin:0 0 7px;font-size:20px}.guide p{margin:0;color:#5d666e;font-size:14px}.tag{display:inline-block;background:#eef1f4;border-radius:999px;padding:4px 8px;font-size:10px;font-weight:900;letter-spacing:.7px;margin-bottom:9px}
.callout{background:#fff5cb;border-left:5px solid var(--yellow);padding:16px 18px;border-radius:10px;margin:22px 0}.danger{background:#fff0f0;border-left-color:#c73535}.note{background:#edf5ff;border-left-color:#2878c8}
.article-meta{color:var(--muted);font-size:13px;margin-bottom:22px}.article-nav{display:flex;gap:10px;flex-wrap:wrap;margin:28px 0 0}.article-nav a{font-weight:800}
footer{max-width:980px;margin:0 auto;padding:0 18px 40px;color:#697078;font-size:13px;text-align:center}footer a{color:inherit}
@media(max-width:700px){.sitebar-inner{align-items:flex-start}.nav{gap:10px;justify-content:flex-end}.nav a{font-size:12px}.grid{grid-template-columns:1fr}.brand span{display:none}.wrap{padding-top:22px}.hero p{font-size:16px}}